The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2006
Filed:
Nov. 24, 2004
Shiliang Yuan, Guangdong, CN;
Hua Xiang, Guangdong, CN;
Shiliang Yuan, Guangdong, CN;
Hua Xiang, Guangdong, CN;
Abstract
The present invention relates to a low loss boost circuit used in power conversion equipment of power supplies or other power systems. It comprises controlling a duty cycle of a power switch; realizing voltage boosting and regulating of the output voltage through the energy storage in a boost inductor; reducing the reverse recovery current using an auxiliary inductor, wherein a secondary winding of the inductor supplies additional energy thereto and provides a path for transferring the energy from the auxiliary inductor to the energy storage capacitor. The present invention has high efficiency and is suitable for power converter with PFC, such as, telecommunication power supply and uninterrupted power supply.